Polymerisable compositions.

摘要

A photopolymerisable composition comprising a polymerisable olefinically unsaturated compound and a photoinitiator composition comprising (a) a photoinitiator comprising an anthraquinone compound having in the 2-position a substituent of the formula : - X COR<1> wherein R<1> represents an optionally substituted hydrocarbyl radical and X represents - O - , - S - or wherein R<2> represents hydrogen or an optionally substituted hydrocarbyl radical, and (b) a hydrogen donor capable of reducing the photoinitiator when the latter is in an excited state. i